The Sun is about 300,000 times …………..than Earth.A. more massive B. more massively C. as massive as D. massive

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

It can be inferred from the passage that the appearance of alternating bands circling Jupiter is caused by__________.

A. the Great Red Spot

B. heat from the Sun

C. the planet’s fast rotation

D. Storms from the planet’s Southern Hemisphere

#Mẫu giáo

1

DH

Dương Hoàn Anh

15 tháng 2 2017

Đáp án C

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LQ

Lê Quỳnh Anh

4 tháng 10 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks. The Planets of Jupiter The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

Which of the following statements is supported by the passage?

A. If Jupiter had fewer satellites, it would be easier for scientists to study the planet itself.

B. If Jupiter had had more mass, it would have developed internal nuclear reactions.

C. If Jupiter had been smaller, it would have become a terrestrial planet.

D. If Jupiter were larger, it would give off much less heat.

#Mẫu giáo

1

DH

Dương Hoàn Anh

4 tháng 10 2019

Đáp án B

Đúng(0)

LQ

Lê Quỳnh Anh

12 tháng 5 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks. The Planets of Jupiter The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

The word ''attained'' in paragraph 1 is closest in meaning to__________.

A. attempted

B. lost

C. changed

D. reached

#Mẫu giáo

1

DH

Dương Hoàn Anh

12 tháng 5 2018

Đáp án D

attain = reach: đạt được , giành được

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ML

Misa Lea

10 tháng 1 2018

EXERCISE 1 Give the correct form of the adjectives and adverbs in brackets: 1. This chair is ..........................………………….. than that one. (comfortable) 2. Your flat is .....................………....... than mine. ( large) 3. The weather today is ........................……… than it was yesterday. (hot) 4. The Nile is the ........................……………………….. river in the world. (long) 5. Chinese bicycles are...

Đọc tiếp

EXERCISE 1 Give the correct form of the adjectives and adverbs in brackets: 1. This chair is ..........................………………….. than that one. (comfortable) 2. Your flat is .....................………....... than mine. ( large) 3. The weather today is ........................……… than it was yesterday. (hot) 4. The Nile is the ........................……………………….. river in the world. (long) 5. Chinese bicycles are ................…........……………….. than Japanese ones. (bad) 6. Mathematics is ........................…………………...….. than English. (difficult) 7. Ho Chi Minh is the ............................………………. city in Viet Nam. (big) 8. He drives ................................. .. ……………than his friend. (careful) 9. She sings ........................……………………….. in this school. (beautiful) 10. I read ............................……………………….. than my sister. (slow) 11. Grace is ...........................………………….. girl in our class. (old) 12. This exercise is .........................…….…………..than that one. (easy) 13. He is twice .........................…….…………..as you. (fat) 14. Nam is .........................…….………….. student of all. (noisy) 15. My cold is .........................…….………….. today than it was yesterday. (good) EXERCISE 2 Choose the best option to complete the following sentences: 1. The more she smiles , ................ she becomes. A. more graceful B. the most graceful C. most graceful D. the more graceful 2. Hotels have developed …………………… restaurants. A. as rapidly as B. so rapidly as C. as rapid as D. more rapid 3. Can Tho bridge is the …………………… one in the South of Viet Nam . A. long B shortest C. longest D. longer 4. Albert Einstein’s contributions to scientific theory were ................ those of Galileo and Newton A. important than B. more important C. the most important D. as important as 5. Impalas cannot move as ................ cheetahs but they are more efficient runners. A. faster than B. fast as C. fast D. are fast as 6. Both are informative articles, but this one is ................ . A. best B. the best C. most D. better 7. She is the .………… girl in our town . A. more beautiful B. beauty C. most beautiful D. more beautifully 8. The harder you learn............. A. The better is your English B. The better will be your English C. The better becomes your English D. The better your English will be 9. Jim is the ................. in his class. A. clever B. cleverest C. cleverer D. more clever 10. Of the two shirts, this one is ................... A. the prettiest B. the most pretty C. prettier D. the prettier 11. Your house is ................. mine. A. as bigger as B. many times as big as C. much big as D. not many times big 12. Last year it wasn’t as cold as this year. A. This year it is as colder than last year. B This year it is colder than last year. C. This year it isn’t as cold as last year. D. This year it isn’t colder than last year. 13. She is older than me. A. I’m more younger than her. B. I’m as younger as her. C. I’m more young than her. D. I’m younger than her. 14. The test is not ………………… A. as difficult as it was last month. B. so difficult as it was last month C. more difficult as it was last month. D. Both A & B are correct 15. The Nile River is ………………… of all. A. longer B. the longest C. long D. longest 16. .................. we read, .................. we know. A. The most/ the most B. The more/ the more C. Most/ most D. More/ more 17. It gets ................... Let’s go swimming. A. hot and hot B. the more hot C. more and more hot D. hotter and hotter 18. Peter usually drives .................. Mary. A. more fast B. more fast than C. more fast D. faster 19. The problem seems to be .................. A. more serious B. more serious than C. more serious as D. more and more serious 20. Peter can not earn .................. his wife. A. as many money as B. as much money as C. as many money than D. as much money than 21. Prices get .................. A. high and high B. highest and highest C. more and more high D. higher and higher 22. The more manufacturers advise, .................. they sell. A. the most products B. the products more C. the more products D. most products 23. ................. a car is ................. it is. A. The more expensive/ the comfortabler B. The most expensive/ the most comfortable C. The more expensive/ the more comfortable D. The less expensive/ the more comfortable- 24. Of the five students. Mary is ................. A. more intelligent B. the more intelligent C. most intelligent D. the most intelligent 25. Steel is ................ than wood. A. more heavy B. as heavy C. heavier D. more heavier 26. A super market is …………………… a shopping center. A. less convenient as B. less convenient than C. not so convenient than D. the most convenient as 27. Viet Nam becomes …………………… to foreign tourists. A. more and most attractive B. the more attractive C. much and more attractive D. more and more attractive 28. This car is …………………… than mine. A. less expensive B. as expensive C. expensive D. not so expensive 29. Tim’s grades are …………………… than John. A. worse B. worst C. as bad D. so bad 30. The …………………… we start, the sooner we will be back. A. early B

#Tiếng anh lớp 6

4

BT

BUI THI HOANG DIEP

11 tháng 1 2018

EXERCISE 1 Give the correct form of the adjectives and adverbs in brackets: 1. This chair is ..........................………………….. than that one. (comfortable)

2. Your flat is ....................larger.………....... than mine. ( large)

3. The weather today is .............hotter...........……… than it was yesterday. (hot)

4. The Nile is the ........................…longest…………………….. river in the world. (long)

5. Chinese bicycles are ................….worse.......……………….. than Japanese ones. (bad)

6. Mathemas is ........................more difficult…………………...….. than English. (difficult)

7. Ho Chi Minh is the .......................biggest.....………………. city in Viet Nam. (big)

8. He drives ..............................more carefully... .. ……………than his friend. (careful)

9. She sings ........................…most beautifully…………………….. in this school. (beautiful)

10. I read .........................more slowly...……………………….. than my sister. (slow)

11. Grace is ...........................the oldest………………….. girl in our class. (old)

12. This exercise is ....................easier.....…….…………..than that one. (easy)

13. He is twice ........................latter.…….…………..as you. (fat)

14. Nam is .........................the noisiest…….………….. student of all. (noisy)

15. My cold is .........................better…….………….. today than it was yesterday. (good)

EXERCISE 2 Choose the best option to complete the following sentences:

1. The more she smiles , ................ she becomes.

D. the more graceful

2. Hotels have developed …………………… restaurants.

A. as rapidly as

3. Can Tho bridge is the …………………… one in the South of Viet Nam

C. longest

4. Albert Einstein’s contributions to scientific theory were ................ those of Galileo and Newton

D. as important as

5. Impalas cannot move as ................ cheetahs but they are more efficient runners.

B. fast as

6. Both are informative arles, but this one is ................ .B. the best

7. She is the .………… girl in our town C. most beautiful

8. The harder you learn............. D. The better your English will be

9. Jim is the ................. in his class. B. cleverest

10. Of the two shirts, this one is ................... C. prettier r

11. Your house is ................. mine. A. as bigger as B. many times as big as C. much big as D. not many times big

12. Last year it wasn’t as cold as this year.

C. This year it isn’t as cold as last year.

13. She is older than me.

A. I’m more younger than her. B. I’m as younger as her. C. I’m more young than her. D. I’m younger than her.

14. The test is not ………………… . D. Both A & B are correct

15. The Nile River is ………………… of all. B. the longest

16. .................. we read, .................. we know.B. The more/ the more C

17. It gets ................... Let’s go swimming. D. hotter and hotter

18. Peter usually drives .................. Mary. D. faster

19. The problem seems to be .................. D. more and more serious

20. Peter can not earn .................. his wife. B. as much money as

21. Prices get .................. higher and higher

22. The more manufacturers advise, .................. they sell. C. the more products

23. ................. a car is ................. it is. C. The more expensive/ the more comfortable -

24. Of the five students. Mary is ................. D. the most intelligent

25. Steel is ................ than wood. C. heavier

26. A super market is …………………… a shopping center. B. less convenient than

27. Viet Nam becomes …………………… to foreign tourists. D. more and more attractive

28. This car is …………………… than mine. A. less expensive

29. Tim’s grades are …………………… than John. A. worse \

30. The …………ealier………… we start, the sooner we will be back.

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BT

BUI THI HOANG DIEP

11 tháng 1 2018

k cho mik nha

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LQ

Lê Quỳnh Anh

28 tháng 5 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks. The Planets of Jupiter The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

Paragraph 3 supports which of the following conclusions?

A. Jupiter gives off twice as much heat as the Sun.

B. Jupiter has a weaker gravitational force than the other planets.

C. Scientists believe that Jupiter was once a star.

D. Scientists might learn about the beginning of the Solar System by Studying Jupiter.

#Mẫu giáo

1

DH

Dương Hoàn Anh

28 tháng 5 2018

Đáp án D

Đúng(0)

LQ

Lê Quỳnh Anh

5 tháng 6 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks. The Planets of Jupiter The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

According to the passage, some scientists believe Jupiter and Earth are similar in that they both have__________.

A. solid surfaces

B. similar masses

C. similar atmospheres

D. metallic cores

#Mẫu giáo

1

DH

Dương Hoàn Anh

5 tháng 6 2017

Đáp án D

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LQ

Lê Quỳnh Anh

7 tháng 7 2018

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks. The Planets of Jupiter The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

The clouds surrounding Jupiter are mostly composed of __________ .

A. ammonia

B. helium

C. hydrogen

D. methan

#Mẫu giáo

1

DH

Dương Hoàn Anh

7 tháng 7 2018

Đáp án A

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LQ

Lê Quỳnh Anh

17 tháng 1 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks. The Planets of Jupiter The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

According to the passage, hydrogen can become a metallic-like liquid when it is__________.

A. extremely hot

B. combined with helium

C. similar atmospheres

D. metallic cores

#Mẫu giáo

1

DH

Dương Hoàn Anh

17 tháng 1 2017

Đáp án C

Đúng(0)

LQ

Lê Quỳnh Anh

30 tháng 1 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks. The Planets of Jupiter The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that best fits each of the numbered blanks.

The Planets of Jupiter

The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earth’s, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiter’s interior might be in the form of liquid, metallic hydrogen, Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiter’s puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or beat generated by the continued gravitational contraction of the planet. Another star like characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

The word they in paragraph 1 refers to__________.

A. nuclear reactions

B. giant planets

C. terrestrial

D. substances

#Mẫu giáo

1

DH

Dương Hoàn Anh

30 tháng 1 2019

Đáp án B

Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets.

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